import { Material } from './Material.js';
import { cloneUniforms, cloneUniformsGroups } from '../renderers/shaders/UniformsUtils.js';
import default_vertex from '../renderers/shaders/ShaderChunk/default_vertex.glsl.js';
import default_fragment from '../renderers/shaders/ShaderChunk/default_fragment.glsl.js';
class ShaderMaterial extends Material {
constructor( parameters ) {
super();
this.isShaderMaterial = true;
this.type = 'ShaderMaterial';
this.defines = {};
this.uniforms = {};
this.uniformsGroups = [];
this.vertexShader = default_vertex;
this.fragmentShader = default_fragment;
this.linewidth = 1;
this.wireframe = false;
this.wireframeLinewidth = 1;
this.fog = false; // set to use scene fog
this.lights = false; // set to use scene lights
this.clipping = false; // set to use user-defined clipping planes
this.forceSinglePass = true;
this.extensions = {
clipCullDistance: false, // set to use vertex shader clipping
multiDraw: false // set to use vertex shader multi_draw / enable gl_DrawID
};
// When rendered geometry doesn't include these attributes but the material does,
// use these default values in WebGL. This avoids errors when buffer data is missing.
this.defaultAttributeValues = {
'color': [ 1, 1, 1 ],
'uv': [ 0, 0 ],
'uv1': [ 0, 0 ]
};
this.index0AttributeName = undefined;
this.uniformsNeedUpdate = false;
this.glslVersion = null;
if ( parameters !== undefined ) {
this.setValues( parameters );
}
}
copy( source ) {
super.copy( source );
this.fragmentShader = source.fragmentShader;
this.vertexShader = source.vertexShader;
this.uniforms = cloneUniforms( source.uniforms );
this.uniformsGroups = cloneUniformsGroups( source.uniformsGroups );
this.defines = Object.assign( {}, source.defines );
this.wireframe = source.wireframe;
this.wireframeLinewidth = source.wireframeLinewidth;
this.fog = source.fog;
this.lights = source.lights;
this.clipping = source.clipping;
this.extensions = Object.assign( {}, source.extensions );
this.glslVersion = source.glslVersion;
return this;
}
toJSON( meta ) {
const data = super.toJSON( meta );
data.glslVersion = this.glslVersion;
data.uniforms = {};
for ( const name in this.uniforms ) {
const uniform = this.uniforms[ name ];
const value = uniform.value;
if ( value && value.isTexture ) {
data.uniforms[ name ] = {
type: 't',
value: value.toJSON( meta ).uuid
};
} else if ( value && value.isColor ) {
data.uniforms[ name ] = {
type: 'c',
value: value.getHex()
};
} else if ( value && value.isVector2 ) {
data.uniforms[ name ] = {
type: 'v2',
value: value.toArray()
};
} else if ( value && value.isVector3 ) {
data.uniforms[ name ] = {
type: 'v3',
value: value.toArray()
};
} else if ( value && value.isVector4 ) {
data.uniforms[ name ] = {
type: 'v4',
value: value.toArray()
};
} else if ( value && value.isMatrix3 ) {
data.uniforms[ name ] = {
type: 'm3',
value: value.toArray()
};
} else if ( value && value.isMatrix4 ) {
data.uniforms[ name ] = {
type: 'm4',
value: value.toArray()
};
} else {
data.uniforms[ name ] = {
value: value
};
// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
}
}
if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines;
data.vertexShader = this.vertexShader;
data.fragmentShader = this.fragmentShader;
data.lights = this.lights;
data.clipping = this.clipping;
const extensions = {};
for ( const key in this.extensions ) {
if ( this.extensions[ key ] === true ) extensions[ key ] = true;
}
if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions;
return data;
}
}
export { ShaderMaterial };